Presentation 2010-06-25
Benefits of Optical RAM Buffer in All-optical Packet Switch
Shin'ichi ARAKAWA, Masayuki MURATA, Ken-ichi KITAYAMA,
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Abstract(in English) Optical RAM buffer is vital devices for the optical packet switching. In this paper, we investigate the benefit of optical RAM buffer that employs an optical bistable device. The photonic crystal cavity realizes strong light confinement, and expected to realize an integrated one-chip all-optical memory. We evaluate the packet loss probability of optical packet switches by incorporating three characteristics introduced by the optical bistable device; size of buffer, wavelength dependency, and packet lifetime. The results show that the benefit of optical RAM buffer is significant when the offered load is low and when the number of buffering port is enough. We also investigate the impact of packet lifetime on the packet loss probability. The results show that InGaAsP-based photonic crystal cavities demonstrated in the recent paper certainly improve the packet loss probability, however, extending the packet lifetime from 150 ns to 200ns will improve the packet loss probability significantly.
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Keyword(in English) Optical packet switching / shared buffering / optical RAM / contention resolution / photon lifetime
Paper # PN2010-10
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Committee PN
Conference Date 2010/6/17(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Benefits of Optical RAM Buffer in All-optical Packet Switch
Sub Title (in English)
Keyword(1) Optical packet switching
Keyword(2) shared buffering
Keyword(3) optical RAM
Keyword(4) contention resolution
Keyword(5) photon lifetime
1st Author's Name Shin'ichi ARAKAWA
1st Author's Affiliation Graduate School of Information Science and Technology, Osaka University()
2nd Author's Name Masayuki MURATA
2nd Author's Affiliation Graduate School of Information Science and Technology, Osaka University
3rd Author's Name Ken-ichi KITAYAMA
3rd Author's Affiliation Graduate School of Engineering, Osaka University
Date 2010-06-25
Paper # PN2010-10
Volume (vol) vol.110
Number (no) 95
Page pp.pp.-
#Pages 6
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